/*-
 * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from the Stanford/CMU enet packet filter,
 * (net/enet.c) distributed as part of 4.3BSD, and code contributed
 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
 * Berkeley Laboratory.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)bpf.h       7.1 (Berkeley) 5/7/91
 *
 * @(#) $Header: /tcpdump/master/libpcap/pcap/bpf.h,v 1.19.2.8 2008-09-22 20:16:01 guy Exp $ (LBL)
 */

/*
 * This is libpcap's cut-down version of bpf.h; it includes only
 * the stuff needed for the code generator and the userland BPF
 * interpreter, and the libpcap APIs for setting filters, etc..
 *
 * "pcap-bpf.c" will include the native OS version, as it deals with
 * the OS's BPF implementation.
 *
 * XXX - should this all just be moved to "pcap.h"?
 */

#ifndef BPF_MAJOR_VERSION

    #ifdef __cplusplus
    extern "C" {
    #endif

/* BSD style release date */
    #define BPF_RELEASE    199606

    #ifdef MSDOS /* must be 32-bit */
        typedef long            bpf_int32;
        typedef unsigned long   bpf_u_int32;
    #else
        typedef int             bpf_int32;
        typedef u_int           bpf_u_int32;
    #endif

/*
 * Alignment macros.  BPF_WORDALIGN rounds up to the next
 * even multiple of BPF_ALIGNMENT.
 */
    #ifndef __NetBSD__
        #define BPF_ALIGNMENT    sizeof( bpf_int32 )
    #else
        #define BPF_ALIGNMENT    sizeof( long )
    #endif
    #define BPF_WORDALIGN( x )    ( ( ( x ) + ( BPF_ALIGNMENT - 1 ) ) & ~( BPF_ALIGNMENT - 1 ) )

    #define BPF_MAXBUFSIZE    0x8000
    #define BPF_MINBUFSIZE    32

/*
 * Structure for "pcap_compile()", "pcap_setfilter()", etc..
 */
    struct bpf_program
    {
        u_int bf_len;
        struct bpf_insn * bf_insns;
    };

/*
 * Struct return by BIOCVERSION.  This represents the version number of
 * the filter language described by the instruction encodings below.
 * bpf understands a program iff kernel_major == filter_major &&
 * kernel_minor >= filter_minor, that is, if the value returned by the
 * running kernel has the same major number and a minor number equal
 * equal to or less than the filter being downloaded.  Otherwise, the
 * results are undefined, meaning an error may be returned or packets
 * may be accepted haphazardly.
 * It has nothing to do with the source code version.
 */
    struct bpf_version
    {
        u_short bv_major;
        u_short bv_minor;
    };
/* Current version number of filter architecture. */
    #define BPF_MAJOR_VERSION    1
    #define BPF_MINOR_VERSION    1

/*
 * Data-link level type codes.
 *
 * Do *NOT* add new values to this list without asking
 * "tcpdump-workers@lists.tcpdump.org" for a value.  Otherwise, you run
 * the risk of using a value that's already being used for some other
 * purpose, and of having tools that read libpcap-format captures not
 * being able to handle captures with your new DLT_ value, with no hope
 * that they will ever be changed to do so (as that would destroy their
 * ability to read captures using that value for that other purpose).
 */

/*
 * These are the types that are the same on all platforms, and that
 * have been defined by <net/bpf.h> for ages.
 */
    #define DLT_NULL           0  /* BSD loopback encapsulation */
    #define DLT_EN10MB         1  /* Ethernet (10Mb) */
    #define DLT_EN3MB          2  /* Experimental Ethernet (3Mb) */
    #define DLT_AX25           3  /* Amateur Radio AX.25 */
    #define DLT_PRONET         4  /* Proteon ProNET Token Ring */
    #define DLT_CHAOS          5  /* Chaos */
    #define DLT_IEEE802        6  /* 802.5 Token Ring */
    #define DLT_ARCNET         7  /* ARCNET, with BSD-style header */
    #define DLT_SLIP           8  /* Serial Line IP */
    #define DLT_PPP            9  /* Point-to-point Protocol */
    #define DLT_FDDI           10 /* FDDI */

/*
 * These are types that are different on some platforms, and that
 * have been defined by <net/bpf.h> for ages.  We use #ifdefs to
 * detect the BSDs that define them differently from the traditional
 * libpcap <net/bpf.h>
 *
 * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS,
 * but I don't know what the right #define is for BSD/OS.
 */
    #define DLT_ATM_RFC1483    11 /* LLC-encapsulated ATM */

    #ifdef __OpenBSD__
        #define DLT_RAW        14 /* raw IP */
    #else
        #define DLT_RAW        12 /* raw IP */
    #endif

/*
 * Given that the only OS that currently generates BSD/OS SLIP or PPP
 * is, well, BSD/OS, arguably everybody should have chosen its values
 * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they
 * didn't.  So it goes.
 */
    #if defined( __NetBSD__ ) || defined( __FreeBSD__ )
        #ifndef DLT_SLIP_BSDOS
            #define DLT_SLIP_BSDOS    13 /* BSD/OS Serial Line IP */
            #define DLT_PPP_BSDOS     14 /* BSD/OS Point-to-point Protocol */
        #endif
    #else
        #define DLT_SLIP_BSDOS        15 /* BSD/OS Serial Line IP */
        #define DLT_PPP_BSDOS         16 /* BSD/OS Point-to-point Protocol */
    #endif

/*
 * 17 is used for DLT_OLD_PFLOG in OpenBSD;
 *     OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below.
 * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else.
 */

    #define DLT_ATM_CLIP             19 /* Linux Classical-IP over ATM */

/*
 * Apparently Redback uses this for its SmartEdge 400/800.  I hope
 * nobody else decided to use it, too.
 */
    #define DLT_REDBACK_SMARTEDGE    32

/*
 * These values are defined by NetBSD; other platforms should refrain from
 * using them for other purposes, so that NetBSD savefiles with link
 * types of 50 or 51 can be read as this type on all platforms.
 */
    #define DLT_PPP_SERIAL           50 /* PPP over serial with HDLC encapsulation */
    #define DLT_PPP_ETHER            51 /* PPP over Ethernet */

/*
 * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses
 * a link-layer type of 99 for the tcpdump it supplies.  The link-layer
 * header has 6 bytes of unknown data, something that appears to be an
 * Ethernet type, and 36 bytes that appear to be 0 in at least one capture
 * I've seen.
 */
    #define DLT_SYMANTEC_FIREWALL    99

/*
 * Values between 100 and 103 are used in capture file headers as
 * link-layer types corresponding to DLT_ types that differ
 * between platforms; don't use those values for new DLT_ new types.
 */

/*
 * This value was defined by libpcap 0.5; platforms that have defined
 * it with a different value should define it here with that value -
 * a link type of 104 in a save file will be mapped to DLT_C_HDLC,
 * whatever value that happens to be, so programs will correctly
 * handle files with that link type regardless of the value of
 * DLT_C_HDLC.
 *
 * The name DLT_C_HDLC was used by BSD/OS; we use that name for source
 * compatibility with programs written for BSD/OS.
 *
 * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well,
 * for source compatibility with programs written for libpcap 0.5.
 */
    #define DLT_C_HDLC        104 /* Cisco HDLC */
    #define DLT_CHDLC         DLT_C_HDLC

    #define DLT_IEEE802_11    105 /* IEEE 802.11 wireless */

/*
 * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW,
 * except when it isn't.  (I.e., sometimes it's just raw IP, and
 * sometimes it isn't.)  We currently handle it as DLT_LINUX_SLL,
 * so that we don't have to worry about the link-layer header.)
 */

/*
 * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides
 * with other values.
 * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header
 * (DLCI, etc.).
 */
    #define DLT_FRELAY    107

/*
 * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except
 * that the AF_ type in the link-layer header is in network byte order.
 *
 * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so
 * we don't use 12 for it in OSes other than OpenBSD.
 */
    #ifdef __OpenBSD__
        #define DLT_LOOP    12
    #else
        #define DLT_LOOP    108
    #endif

/*
 * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's
 * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other
 * than OpenBSD.
 */
    #ifdef __OpenBSD__
        #define DLT_ENC    13
    #else
        #define DLT_ENC    109
    #endif

/*
 * Values between 110 and 112 are reserved for use in capture file headers
 * as link-layer types corresponding to DLT_ types that might differ
 * between platforms; don't use those values for new DLT_ types
 * other than the corresponding DLT_ types.
 */

/*
 * This is for Linux cooked sockets.
 */
    #define DLT_LINUX_SLL    113

/*
 * Apple LocalTalk hardware.
 */
    #define DLT_LTALK        114

/*
 * Acorn Econet.
 */
    #define DLT_ECONET       115

/*
 * Reserved for use with OpenBSD ipfilter.
 */
    #define DLT_IPFILTER     116

/*
 * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023
 * in SuSE 6.3, so we can't use 17 for it in capture-file headers.
 *
 * XXX: is there a conflict with DLT_PFSYNC 18 as well?
 */
    #ifdef __OpenBSD__
        #define DLT_OLD_PFLOG                 17
        #define DLT_PFSYNC                    18
    #endif
    #define DLT_PFLOG                         117

/*
 * Registered for Cisco-internal use.
 */
    #define DLT_CISCO_IOS                     118

/*
 * For 802.11 cards using the Prism II chips, with a link-layer
 * header including Prism monitor mode information plus an 802.11
 * header.
 */
    #define DLT_PRISM_HEADER                  119

/*
 * Reserved for Aironet 802.11 cards, with an Aironet link-layer header
 * (see Doug Ambrisko's FreeBSD patches).
 */
    #define DLT_AIRONET_HEADER                120

/*
 * Reserved for Siemens HiPath HDLC.
 */
    #define DLT_HHDLC                         121

/*
 * This is for RFC 2625 IP-over-Fibre Channel.
 *
 * This is not for use with raw Fibre Channel, where the link-layer
 * header starts with a Fibre Channel frame header; it's for IP-over-FC,
 * where the link-layer header starts with an RFC 2625 Network_Header
 * field.
 */
    #define DLT_IP_OVER_FC                    122

/*
 * This is for Full Frontal ATM on Solaris with SunATM, with a
 * pseudo-header followed by an AALn PDU.
 *
 * There may be other forms of Full Frontal ATM on other OSes,
 * with different pseudo-headers.
 *
 * If ATM software returns a pseudo-header with VPI/VCI information
 * (and, ideally, packet type information, e.g. signalling, ILMI,
 * LANE, LLC-multiplexed traffic, etc.), it should not use
 * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump
 * and the like don't have to infer the presence or absence of a
 * pseudo-header and the form of the pseudo-header.
 */
    #define DLT_SUNATM                        123 /* Solaris+SunATM */

/*
 * Reserved as per request from Kent Dahlgren <kent@praesum.com>
 * for private use.
 */
    #define DLT_RIO                           124 /* RapidIO */
    #define DLT_PCI_EXP                       125 /* PCI Express */
    #define DLT_AURORA                        126 /* Xilinx Aurora link layer */

/*
 * Header for 802.11 plus a number of bits of link-layer information
 * including radio information, used by some recent BSD drivers as
 * well as the madwifi Atheros driver for Linux.
 */
    #define DLT_IEEE802_11_RADIO              127 /* 802.11 plus radiotap radio header */

/*
 * Reserved for the TZSP encapsulation, as per request from
 * Chris Waters <chris.waters@networkchemistry.com>
 * TZSP is a generic encapsulation for any other link type,
 * which includes a means to include meta-information
 * with the packet, e.g. signal strength and channel
 * for 802.11 packets.
 */
    #define DLT_TZSP                          128 /* Tazmen Sniffer Protocol */

/*
 * BSD's ARCNET headers have the source host, destination host,
 * and type at the beginning of the packet; that's what's handed
 * up to userland via BPF.
 *
 * Linux's ARCNET headers, however, have a 2-byte offset field
 * between the host IDs and the type; that's what's handed up
 * to userland via PF_PACKET sockets.
 *
 * We therefore have to have separate DLT_ values for them.
 */
    #define DLT_ARCNET_LINUX                  129 /* ARCNET */

/*
 * Juniper-private data link types, as per request from
 * Hannes Gredler <hannes@juniper.net>.  The DLT_s are used
 * for passing on chassis-internal metainformation such as
 * QOS profiles, etc..
 */
    #define DLT_JUNIPER_MLPPP                 130
    #define DLT_JUNIPER_MLFR                  131
    #define DLT_JUNIPER_ES                    132
    #define DLT_JUNIPER_GGSN                  133
    #define DLT_JUNIPER_MFR                   134
    #define DLT_JUNIPER_ATM2                  135
    #define DLT_JUNIPER_SERVICES              136
    #define DLT_JUNIPER_ATM1                  137

/*
 * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund
 * <dieter@apple.com>.  The header that's presented is an Ethernet-like
 * header:
 *
 *	#define FIREWIRE_EUI64_LEN	8
 *	struct firewire_header {
 *		u_char  firewire_dhost[FIREWIRE_EUI64_LEN];
 *		u_char  firewire_shost[FIREWIRE_EUI64_LEN];
 *		u_short firewire_type;
 *	};
 *
 * with "firewire_type" being an Ethernet type value, rather than,
 * for example, raw GASP frames being handed up.
 */
    #define DLT_APPLE_IP_OVER_IEEE1394        138

/*
 * Various SS7 encapsulations, as per a request from Jeff Morriss
 * <jeff.morriss[AT]ulticom.com> and subsequent discussions.
 */
    #define DLT_MTP2_WITH_PHDR                139 /* pseudo-header with various info, followed by MTP2 */
    #define DLT_MTP2                          140 /* MTP2, without pseudo-header */
    #define DLT_MTP3                          141 /* MTP3, without pseudo-header or MTP2 */
    #define DLT_SCCP                          142 /* SCCP, without pseudo-header or MTP2 or MTP3 */

/*
 * DOCSIS MAC frames.
 */
    #define DLT_DOCSIS                        143

/*
 * Linux-IrDA packets. Protocol defined at http://www.irda.org.
 * Those packets include IrLAP headers and above (IrLMP...), but
 * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy
 * framing can be handled by the hardware and depend on the bitrate.
 * This is exactly the format you would get capturing on a Linux-IrDA
 * interface (irdaX), but not on a raw serial port.
 * Note the capture is done in "Linux-cooked" mode, so each packet include
 * a fake packet header (struct sll_header). This is because IrDA packet
 * decoding is dependant on the direction of the packet (incoming or
 * outgoing).
 * When/if other platform implement IrDA capture, we may revisit the
 * issue and define a real DLT_IRDA...
 * Jean II
 */
    #define DLT_LINUX_IRDA                    144

/*
 * Reserved for IBM SP switch and IBM Next Federation switch.
 */
    #define DLT_IBM_SP                        145
    #define DLT_IBM_SN                        146

/*
 * Reserved for private use.  If you have some link-layer header type
 * that you want to use within your organization, with the capture files
 * using that link-layer header type not ever be sent outside your
 * organization, you can use these values.
 *
 * No libpcap release will use these for any purpose, nor will any
 * tcpdump release use them, either.
 *
 * Do *NOT* use these in capture files that you expect anybody not using
 * your private versions of capture-file-reading tools to read; in
 * particular, do *NOT* use them in products, otherwise you may find that
 * people won't be able to use tcpdump, or snort, or Ethereal, or... to
 * read capture files from your firewall/intrusion detection/traffic
 * monitoring/etc. appliance, or whatever product uses that DLT_ value,
 * and you may also find that the developers of those applications will
 * not accept patches to let them read those files.
 *
 * Also, do not use them if somebody might send you a capture using them
 * for *their* private type and tools using them for *your* private type
 * would have to read them.
 *
 * Instead, ask "tcpdump-workers@lists.tcpdump.org" for a new DLT_ value,
 * as per the comment above, and use the type you're given.
 */
    #define DLT_USER0                         147
    #define DLT_USER1                         148
    #define DLT_USER2                         149
    #define DLT_USER3                         150
    #define DLT_USER4                         151
    #define DLT_USER5                         152
    #define DLT_USER6                         153
    #define DLT_USER7                         154
    #define DLT_USER8                         155
    #define DLT_USER9                         156
    #define DLT_USER10                        157
    #define DLT_USER11                        158
    #define DLT_USER12                        159
    #define DLT_USER13                        160
    #define DLT_USER14                        161
    #define DLT_USER15                        162

/*
 * For future use with 802.11 captures - defined by AbsoluteValue
 * Systems to store a number of bits of link-layer information
 * including radio information:
 *
 *	http://www.shaftnet.org/~pizza/software/capturefrm.txt
 *
 * but it might be used by some non-AVS drivers now or in the
 * future.
 */
    #define DLT_IEEE802_11_RADIO_AVS          163 /* 802.11 plus AVS radio header */

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.  The DLT_s are used
 * for passing on chassis-internal metainformation such as
 * QOS profiles, etc..
 */
    #define DLT_JUNIPER_MONITOR               164

/*
 * Reserved for BACnet MS/TP.
 */
    #define DLT_BACNET_MS_TP                  165

/*
 * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>.
 *
 * This is used in some OSes to allow a kernel socket filter to distinguish
 * between incoming and outgoing packets, on a socket intended to
 * supply pppd with outgoing packets so it can do dial-on-demand and
 * hangup-on-lack-of-demand; incoming packets are filtered out so they
 * don't cause pppd to hold the connection up (you don't want random
 * input packets such as port scans, packets from old lost connections,
 * etc. to force the connection to stay up).
 *
 * The first byte of the PPP header (0xff03) is modified to accommodate
 * the direction - 0x00 = IN, 0x01 = OUT.
 */
    #define DLT_PPP_PPPD                      166

/*
 * Names for backwards compatibility with older versions of some PPP
 * software; new software should use DLT_PPP_PPPD.
 */
    #define DLT_PPP_WITH_DIRECTION            DLT_PPP_PPPD
    #define DLT_LINUX_PPP_WITHDIRECTION       DLT_PPP_PPPD

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.  The DLT_s are used
 * for passing on chassis-internal metainformation such as
 * QOS profiles, cookies, etc..
 */
    #define DLT_JUNIPER_PPPOE                 167
    #define DLT_JUNIPER_PPPOE_ATM             168

    #define DLT_GPRS_LLC                      169 /* GPRS LLC */
    #define DLT_GPF_T                         170 /* GPF-T (ITU-T G.7041/Y.1303) */
    #define DLT_GPF_F                         171 /* GPF-F (ITU-T G.7041/Y.1303) */

/*
 * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line
 * monitoring equipment.
 */
    #define DLT_GCOM_T1E1                     172
    #define DLT_GCOM_SERIAL                   173

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.  The DLT_ is used
 * for internal communication to Physical Interface Cards (PIC)
 */
    #define DLT_JUNIPER_PIC_PEER              174

/*
 * Link types requested by Gregor Maier <gregor@endace.com> of Endace
 * Measurement Systems.  They add an ERF header (see
 * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of
 * the link-layer header.
 */
    #define DLT_ERF_ETH                       175 /* Ethernet */
    #define DLT_ERF_POS                       176 /* Packet-over-SONET */

/*
 * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD
 * for vISDN (http://www.orlandi.com/visdn/).  Its link-layer header
 * includes additional information before the LAPD header, so it's
 * not necessarily a generic LAPD header.
 */
    #define DLT_LINUX_LAPD                    177

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.
 * The DLT_ are used for prepending meta-information
 * like interface index, interface name
 * before standard Ethernet, PPP, Frelay & C-HDLC Frames
 */
    #define DLT_JUNIPER_ETHER                 178
    #define DLT_JUNIPER_PPP                   179
    #define DLT_JUNIPER_FRELAY                180
    #define DLT_JUNIPER_CHDLC                 181

/*
 * Multi Link Frame Relay (FRF.16)
 */
    #define DLT_MFR                           182

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.
 * The DLT_ is used for internal communication with a
 * voice Adapter Card (PIC)
 */
    #define DLT_JUNIPER_VP                    183

/*
 * Arinc 429 frames.
 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
 * Every frame contains a 32bit A429 label.
 * More documentation on Arinc 429 can be found at
 * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf
 */
    #define DLT_A429                          184

/*
 * Arinc 653 Interpartition Communication messages.
 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
 * Please refer to the A653-1 standard for more information.
 */
    #define DLT_A653_ICM                      185

/*
 * USB packets, beginning with a USB setup header; requested by
 * Paolo Abeni <paolo.abeni@email.it>.
 */
    #define DLT_USB                           186

/*
 * Bluetooth HCI UART transport layer (part H:4); requested by
 * Paolo Abeni.
 */
    #define DLT_BLUETOOTH_HCI_H4              187

/*
 * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz
 * <cruz_petagay@bah.com>.
 */
    #define DLT_IEEE802_16_MAC_CPS            188

/*
 * USB packets, beginning with a Linux USB header; requested by
 * Paolo Abeni <paolo.abeni@email.it>.
 */
    #define DLT_USB_LINUX                     189

/*
 * Controller Area Network (CAN) v. 2.0B packets.
 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
 * Used to dump CAN packets coming from a CAN Vector board.
 * More documentation on the CAN v2.0B frames can be found at
 * http://www.can-cia.org/downloads/?269
 */
    #define DLT_CAN20B                        190

/*
 * IEEE 802.15.4, with address fields padded, as is done by Linux
 * drivers; requested by Juergen Schimmer.
 */
    #define DLT_IEEE802_15_4_LINUX            191

/*
 * Per Packet Information encapsulated packets.
 * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>.
 */
    #define DLT_PPI                           192

/*
 * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header;
 * requested by Charles Clancy.
 */
    #define DLT_IEEE802_16_MAC_CPS_RADIO      193

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.
 * The DLT_ is used for internal communication with a
 * integrated service module (ISM).
 */
    #define DLT_JUNIPER_ISM                   194

/*
 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
 * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>.
 */
    #define DLT_IEEE802_15_4                  195

/*
 * Various link-layer types, with a pseudo-header, for SITA
 * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com).
 */
    #define DLT_SITA                          196

/*
 * Various link-layer types, with a pseudo-header, for Endace DAG cards;
 * encapsulates Endace ERF records.  Requested by Stephen Donnelly
 * <stephen@endace.com>.
 */
    #define DLT_ERF                           197

/*
 * Special header prepended to Ethernet packets when capturing from a
 * u10 Networks board.  Requested by Phil Mulholland
 * <phil@u10networks.com>.
 */
    #define DLT_RAIF1                         198

/*
 * IPMB packet for IPMI, beginning with the I2C slave address, followed
 * by the netFn and LUN, etc..  Requested by Chanthy Toeung
 * <chanthy.toeung@ca.kontron.com>.
 */
    #define DLT_IPMB                          199

/*
 * Juniper-private data link type, as per request from
 * Hannes Gredler <hannes@juniper.net>.
 * The DLT_ is used for capturing data on a secure tunnel interface.
 */
    #define DLT_JUNIPER_ST                    200

/*
 * Bluetooth HCI UART transport layer (part H:4), with pseudo-header
 * that includes direction information; requested by Paolo Abeni.
 */
    #define DLT_BLUETOOTH_HCI_H4_WITH_PHDR    201

/*
 * AX.25 packet with a 1-byte KISS header; see
 *
 *	http://www.ax25.net/kiss.htm
 *
 * as per Richard Stearn <richard@rns-stearn.demon.co.uk>.
 */
    #define DLT_AX25_KISS                     202

/*
 * LAPD packets from an ISDN channel, starting with the address field,
 * with no pseudo-header.
 * Requested by Varuna De Silva <varunax@gmail.com>.
 */
    #define DLT_LAPD                          203

/*
 * Variants of various link-layer headers, with a one-byte direction
 * pseudo-header prepended - zero means "received by this host",
 * non-zero (any non-zero value) means "sent by this host" - as per
 * Will Barker <w.barker@zen.co.uk>.
 */
    #define DLT_PPP_WITH_DIR                  204 /* PPP - don't confuse with DLT_PPP_WITH_DIRECTION */
    #define DLT_C_HDLC_WITH_DIR               205 /* Cisco HDLC */
    #define DLT_FRELAY_WITH_DIR               206 /* Frame Relay */
    #define DLT_LAPB_WITH_DIR                 207 /* LAPB */

/*
 * 208 is reserved for an as-yet-unspecified proprietary link-layer
 * type, as requested by Will Barker.
 */

/*
 * IPMB with a Linux-specific pseudo-header; as requested by Alexey Neyman
 * <avn@pigeonpoint.com>.
 */
    #define DLT_IPMB_LINUX                 209

/*
 * FlexRay automotive bus - http://www.flexray.com/ - as requested
 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
 */
    #define DLT_FLEXRAY                    210

/*
 * Media Oriented Systems Transport (MOST) bus for multimedia
 * transport - http://www.mostcooperation.com/ - as requested
 * by Hannes Kaelber <hannes.kaelber@x2e.de>.
 */
    #define DLT_MOST                       211

/*
 * Local Interconnect Network (LIN) bus for vehicle networks -
 * http://www.lin-subbus.org/ - as requested by Hannes Kaelber
 * <hannes.kaelber@x2e.de>.
 */
    #define DLT_LIN                        212

/*
 * X2E-private data link type used for serial line capture,
 * as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
 */
    #define DLT_X2E_SERIAL                 213

/*
 * X2E-private data link type used for the Xoraya data logger
 * family, as requested by Hannes Kaelber <hannes.kaelber@x2e.de>.
 */
    #define DLT_X2E_XORAYA                 214

/*
 * IEEE 802.15.4, exactly as it appears in the spec (no padding, no
 * nothing), but with the PHY-level data for non-ASK PHYs (4 octets
 * of 0 as preamble, one octet of SFD, one octet of frame length+
 * reserved bit, and then the MAC-layer data, starting with the
 * frame control field).
 *
 * Requested by Max Filippov <jcmvbkbc@gmail.com>.
 */
    #define DLT_IEEE802_15_4_NONASK_PHY    215


/*
 * DLT and savefile link type values are split into a class and
 * a member of that class.  A class value of 0 indicates a regular
 * DLT_/LINKTYPE_ value.
 */
    #define DLT_CLASS( x )    ( ( x ) & 0x03ff0000 )

/*
 * NetBSD-specific generic "raw" link type.  The class value indicates
 * that this is the generic raw type, and the lower 16 bits are the
 * address family we're dealing with.  Those values are NetBSD-specific;
 * do not assume that they correspond to AF_ values for your operating
 * system.
 */
    #define DLT_CLASS_NETBSD_RAWAF    0x02240000
    #define DLT_NETBSD_RAWAF( af )      ( DLT_CLASS_NETBSD_RAWAF | ( af ) )
    #define DLT_NETBSD_RAWAF_AF( x )    ( ( x ) & 0x0000ffff )
    #define DLT_IS_NETBSD_RAWAF( x )    ( DLT_CLASS( x ) == DLT_CLASS_NETBSD_RAWAF )


/*
 * The instruction encodings.
 */
/* instruction classes */
    #define BPF_CLASS( code )    ( ( code ) & 0x07 )
    #define     BPF_LD      0x00
    #define     BPF_LDX     0x01
    #define     BPF_ST      0x02
    #define     BPF_STX     0x03
    #define     BPF_ALU     0x04
    #define     BPF_JMP     0x05
    #define     BPF_RET     0x06
    #define     BPF_MISC    0x07

/* ld/ldx fields */
    #define BPF_SIZE( code )    ( ( code ) & 0x18 )
    #define     BPF_W      0x00
    #define     BPF_H      0x08
    #define     BPF_B      0x10
    #define BPF_MODE( code )    ( ( code ) & 0xe0 )
    #define     BPF_IMM    0x00
    #define     BPF_ABS    0x20
    #define     BPF_IND    0x40
    #define     BPF_MEM    0x60
    #define     BPF_LEN    0x80
    #define     BPF_MSH    0xa0

/* alu/jmp fields */
    #define BPF_OP( code )    ( ( code ) & 0xf0 )
    #define     BPF_ADD     0x00
    #define     BPF_SUB     0x10
    #define     BPF_MUL     0x20
    #define     BPF_DIV     0x30
    #define     BPF_OR      0x40
    #define     BPF_AND     0x50
    #define     BPF_LSH     0x60
    #define     BPF_RSH     0x70
    #define     BPF_NEG     0x80
    #define     BPF_JA      0x00
    #define     BPF_JEQ     0x10
    #define     BPF_JGT     0x20
    #define     BPF_JGE     0x30
    #define     BPF_JSET    0x40
    #define BPF_SRC( code )    ( ( code ) & 0x08 )
    #define     BPF_K       0x00
    #define     BPF_X       0x08

/* ret - BPF_K and BPF_X also apply */
    #define BPF_RVAL( code )    ( ( code ) & 0x18 )
    #define     BPF_A    0x10

/* misc */
    #define BPF_MISCOP( code )    ( ( code ) & 0xf8 )
    #define     BPF_TAX    0x00
    #define     BPF_TXA    0x80

/*
 * The instruction data structure.
 */
    struct bpf_insn
    {
        u_short code;
        u_char jt;
        u_char jf;
        bpf_u_int32 k;
    };

/*
 * Macros for insn array initializers.
 */
    #define BPF_STMT( code, k )            { ( u_short ) ( code ), 0, 0, k }
    #define BPF_JUMP( code, k, jt, jf )    { ( u_short ) ( code ), jt, jf, k }

    #if __STDC__ || defined( __cplusplus )
        extern int bpf_validate( const struct bpf_insn *,
                                 int );
        extern u_int bpf_filter( const struct bpf_insn *,
                                 const u_char *,
                                 u_int,
                                 u_int );
    #else
        extern int bpf_validate();
        extern u_int bpf_filter();
    #endif

/*
 * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST).
 */
    #define BPF_MEMWORDS    16

    #ifdef __cplusplus
}
    #endif

#endif /* ifndef BPF_MAJOR_VERSION */
